Device for the production of jacquard patterned, seamless goods



Nov. 3, 1931. G. NOBST ET AL DEVICE FOR THE PRODUCTION OF JACQUARD PATTERNED, SEAMLESS GOODS 2 Sheets-Sheet 1 Filed Jan. 21. 1930 Ill .7n yen fortjay 4651.

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NOV. 3, 1931. NQBST ET AL 1,836,712

DEVICE FOR THE PRODUCTION 0F JAGQUARD PATTERNED, SEAMLESS GOODS Patented Nov. 3, 1931 GEOBG NOBST AND ERNST UIBBIUHT, F MITTWEIDA, GERMANY,

ASSIGNOBg 1'0 800'!!! d. WILLIAMS, IIQIQOBPORATED, OF NEW YORK, N. Y.

DEVICE FOR THE PRODUUDIOH 9F JACQUARD PATTEBNED, SEAMLESB GOODS Application filed January 21, 1930, Serial No.

This invention relates to devices suitable for circular knitting or round 'work machines, for the production of jacquard patterned goods. The novelty conslsts essentially therein that bendable members such as so called Bowden wires, are provided above or inside the needle cylinder and act from inside on the pattern forming members. The employment of Bowden wires as trans- 10 mission means for a jacquard apparatus however is already known but not in the arrangement according to the invention. It is only by the aid of the said invention that it is made possible to arrange centrally in a very small compass, the Bowden wires to be operated from the jacquard cylinder, so that only one or at the most two jacquard apparatuses are necessary for the operation of all the Bowden wires.

According to a previous proposal, the pattern hooks were also operated by a device arranged above or inside the needle cylinder and acted on by a jacquard apparatus. This previous device consists of air channels and possesses the possibility of the escape of air near the pattern hooks.

N 0 insurance is given thereby of a certain operation of the chosen pattern hooks. This possibility is not present with the use of Bowden wires at this place. These semirigid members have to operate the pattern hooks belonging to them under all circumstances.

In circular machines with revolving hook raisers and revolving draw in member a grouping in advance of all the chosen pattern hooks or needles is not possible by the aid of only one jacquard cylinder, even when Bowden wires are used because the draw wires would push against these implements where they are in action. Therefore a dis tributed pre-grouping of the pattern members must take place. The suggestion arose to allow the grouping to take place in a manner already known in the case of weaving looms with jacquard apparatus and consisting in allowing two cards of a jacquard card chain which lie one immediately behind the other to act per system on the means which serve to operate the pattern hooks. A meth- 422,424, and in Germany January 28, 1928.

0d of this kind however has several disadvantages. For example the jacquard cylinder had to be partially turned twice in the pregrouping of the pattern hooks for one row of stitches. This quick turning movement certainly resulted in a throwing or flinging of the cards and therefore in an inaccurate working of the transmission means. In or der to take this circumstance into account, one was forced in this methodto reduce the rotary speed of the machine until even with double partial turning of the jacquard cylinder, the cards run smoothly. In practice the rotary speed had to be greatly reduced, for example down to one half, whereby naturally only one half of the normal output could be attained.

According to the invention the Bowden wires situated inside or above the needle cylinder are divided into groups at their upper ends, each group being so operated by one card cylinder that when a card cylinder 0perates, the other card cylinders are out of operation or are so partially turned that they bring a fresh card into position ready for operation.

In practice two jacquard card chains are sufficient for machines of from the smallest to the largest cylinder diameters, because they work alternately. This new device has the advantage that each of two card barrels requires to be partially turned only once per rowof stitches and accordingly the rotary speed of the machine can be maintained as high as is permissible with any jacquard apparatus having one partiall turning movement per row of stitches. urthermore also very small cards can be used because conveniently each card is arran for pregrouping half of the hooks. be smaller a card is, the more easily it allows itself to be turned. Furthermore there is no flinging of the cards which therefore can carry out their exact work. According to a known proposal. also several jacquard card chains were employed for pattern purposes to operate the draw wires, the jacquard card chains coming into action successively. The jacquard ap aratuses however act on the pattern members from outside. This results in at least four j ac uard cylinders being ne'ces sary for a. circu ar machine of the smallest diameter and the necessary number of jacquard cylinders increases with the size of the cylinder diameter.

The method of arrangement of the two jacquard cylinders can vary. Whilst according to one proposal in accordance with the invention, two jacquard card chains move towards each other and work alternately. according to another proposal in accordance with the invention both jacquard card chains lie side by side and naturally are also operated alternately.

The use of Bowden wires in the arrange ment in accordance with the invention is illustrated in a constructional example in Figures 1 to 3 of the accompanying drawings in connection with a pattern apparatus with a rotary hook-lifter and a rotary draw in member under use of a known jacquard apparatus, whilst Figure 4 shows two opposed jacquard card chains regarded from the front; Figure 5 shows two jacquard card chains running side by side and regarded from above.

Figure 6 is a diagrammatic plan view of the connections from two jacquard cards to a multi-feed machine.

In a plate 1 provided above the circular knitting machine (not shown) are screwed collars 2 on which are mounted tubes 3 which are led through a ring 4 and end in front of the ring 4 but behind the pattern hooks 5.

In each collar 2 and tube 3 there is mounted a wire 6 which projects from both of these parts and terminates at its lower end immediately behind the rear side 7 of the head 8 of the pattern hook. A stop 9 is secured in the collar 2 and the wire 6 is led through it. A disc 10 is secured to the wire 6 and is situated some distance away from the stop 9 and a compression spring 11 surrounds the wire 6 between the disc 10 and stop 9. The head of the wire has a plate 12. These plates are pressed on by the endless pattern card 17 when no holes 18 are present in the cards, the card 17 being raisable and lower-able in known manner by means of a cam, rod and lever mechanism 13, 14, 15 and 16. 'Ifhe wire 6 is moved downwards thereby against the action of the spring 11, so that the lower end of the wire 6 pushes the pattern hook 5 positively lIlEO the path of movement of the retary raising members 19, 20.

The pattern card 17 is led over a acquard cylinder 22 furnished with driving pegs 21 and with a ratchet wheel 21. When the cylinder 22 is lifted by the cam, rod and lever mechanism 13 to 16, one tooth of the ratchet wheel 21 remains engaged with the catch 23 which is pivotally mounted on the plate 1 and thereby occasions a quarter turn of the jacquard cylinder 22 about its axis 24 and thereby causes another part of the pattern card 17 to be presented. It the head 12 of the wire registers with a hole 18 in the pattern card 17, when the pattern card 17 is lowered, the said wire and its pattern book 5 remain unacted on.

In the constructional example according to Figure 4 of the accompanying drawings the plate 1 carrying the Bowdcn wires 3 is so distributed that there are two parts 1 and 1", which are opposed to each other in slanting direction. In front of each of these parts 1' and 1" is a swingably mounted jacquard cylinder 22 and 22" respectively over each of which is led an endless pattern card 17 and 17" respectively. The left hand jacquard cylinder 22 is shown in the operative position, that is to say it is swung against the stop 25 projecting from the left hand plate 1' and thereby has brought the hooks 5 required for patterning into a working positiun in front of which sland none of the rotary hook raiscrs 20 and draw in members. Immediately after this pattern activity, the left hand cylinder 22' again returns to its initial position and whilst the hook raisers and draw in members act on the thus pregrouped hooks 5, the right hand jacquard cylinder 22" comes against the stop 25 of the right hand plate 1" and the card leaf in position thereon pushes the hooks 5 of the second group into their working position.

This alternate operation of the two pattern cards 17 and 17 takes place once per row of stitches, so that if for example four rows of stitches are produced in one revolution of the machine (as in Fig. 6, where four yarn feeds are shown at 26), four card leaves of each of the two pattern cards are brought into the operative position. The card leaves thereby can be maintained very small because they have only the hole rows for a small zone of grouping. All this is also the case in the constructional example according to Figure 5 of the accompanying drawings, wherein the jacquard cylinders 22 and 22" are arranged side by side and are swung against the stop plate 1 alternately and independently of each other.

W'e claim 1. A circular knitting machine having a circle of loop-forming elements, in combination with a plurality of jacquard selecting means connected to said loop-forming elements by members actuated thereby, each of tion with flexible members such as Bowden wires connecting said jacquard selecting means and loop-f ming elements, each of said 'acquard selecting means being connecte to a plurality'of said loop-forming elements and the group connected to one jacquard means being alternated with the group connected to the other, and means operating said jacquard means in alternation.

3 A circular knitting machine having a. needle cylinder, a circle of loop-forming elements and a plurality of jacquard selecting means connected to said loop-forming elements, in combination with flexible members such as Bowden wires connecting said jacquard selecting means and loop-forming elements, each of said jacquard selecting means being connected to a plurality of said loopforming elements and the grou; connected to one jacquard means being al rnated with the group connected to the other, and means operating said jacquard means in alternation, the said flexible mer ibers being situated within an area inside the needle cylinder and cxtending vertically ihereabove.

In testimony whereof, We have signed our names to thi spe-s-ification this 24th day of December, 1929.

GEORG NOBST. ERNST ULBRIGHT.

tion with flexible members such as Bowden wires connecting said jacquard selectm means and loop-f ming elements, each said 'acquard selecting means being connecte to a plurality'of said loop-forming elements and the group connected to one Jacquard means being alternated with the group connected to the other, and means operating said jacquard means in. alternation.

3. A circular knitting machine having a. needle cylinder, a circle of loopiorming elements and a. plurality of jacquard selecting means connected to said loop-forming elements, in combination with flexible members such as Bowden wires connecting said jwcquard selecting means and loop-forming elements, each of said jacquard selecting means being connected to a plurality of said loopforming elements and the group connected to one jacquard means being ai rnated with the group connected to the other, and means operating said jacquard means in alternation, the said flexible members being situated Within an area. inside the needle cylinder and extending vertically ihercabove.

In testimony whereof. we have signed our names to thi specification this 24th day of December, 1929.

GEORG NOBST. 3 ERNST ULBRIGHT.

CERTIFICATE ()F CORRECTION.

Patent No. 1,839,712.

Granted November 3, 1931, to

GEORG NOBST ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows:

Page 3. line 5, claim 2. and line 18, ciaim 3. after "of" insert the words groups of; same page, lines 6 and 7. claim 2 and lines l9 and 21, claim 3. respectively. for "group" read groups; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 22nd day of December, A. D. 1931.

(Seal) M. J. Moore, Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. |,830,7l2. Granted November 3. 1931, to

GEORG NOBST ET AL.

it is hereby rertiiied that error appears in the primed specification of the almve numbered patent requiring correction as foiiows: Page 3, line 5, claim 2. and line i3, claim 3, after "oi" insert the words groups of: same page, lines 6 and 7. claim 2 and iines l9 and 21. ciaim 3, respectively. for "group" read groups; and that the said Letters Patent should be read with these corrections therein that the same may conionu to the record of the case in the Patent Oifice.

Signed and sealed this 22nd day of December, A. D. 193i.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

